From: Rong Tao rongtao@cestc.cn

Fix bpf_strnstr() wrong 'len' parameter, bpf_strnstr("open", "open", 4) should return 0 instead of -ENOENT.

Rong Tao (2): bpf/helpers: bpf_strnstr: Exact match length selftests/bpf: Add tests for bpf_strnstr

kernel/bpf/helpers.c | 4 +++- tools/testing/selftests/bpf/progs/string_kfuncs_success.c | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-)

--- v2: Follow Andrii Nakryiko's advise, fix the 'wrong fix'; v1: https://lore.kernel.org/lkml/tencent_65E5988AD52BEC280D22964189505CD6ED06@qq...